AirHint found the following cheapest return flights from Miami (MIA) to Keflavik (KEF) in May 2026 (see full year).
Return flights
| 04 May - 11 May | Virgin Atlantic | ||
| 26 May - 02 Jun | SWISS | ||
| 25 May - 01 Jun | TAP | ||
| 27 May - 31 May | United |
Also check the deals for one-way flights from Miami to Keflavik in May.
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